BillOfSaleNow

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Seattle, Washington Car Bill of Sale

Use this bill of sale when selling a car in Seattle, Washington. It documents the transfer and helps you complete DMV title paperwork.

Seattle, WashingtonCarPopulation rank #17

What to include

  • Buyer and seller names and addresses
  • Car VIN and vehicle details
  • Sale price and date
  • Signatures from both parties

Next step

Create a compliant bill of sale and download the signed PDF immediately.

Local Requirements — King County

DMV / Title Office

WA DOL – Seattle Driver Licensing Office

Address

2200 E Cherry St, Seattle, WA 98122

Phone

(360) 902-3900

Office Hours

Mon–Fri 8:30 AM–4:30 PM

Transfer Fees & Taxes

Title Transfer Fee

$15.00

Sales Tax Rate

10.25%

Base Registration Fee

$43.75

Washington state rate 6.5% + King County/Seattle local rate 3.6% + Sound Transit 0.15%

Notarization: NOT REQUIRED

Washington does not require notarization for private vehicle sales.

Seattle Transfer Checklist

  • Buyer must have a bill of sale showing the purchase price to calculate use tax
  • Washington charges use tax on private vehicle purchases collected at DOL
  • Title must be transferred within 15 days
  • Seller should keep a copy of the bill of sale

County Information — King County

County Clerk / Recorder

King County Recorder

Phone

(206) 296-1570

Car market data and safety information

The most common car makes in private-party sales are Toyota, Honda, Ford, Chevrolet, Nissan. Average private-party car prices range from $5,000–$25,000. The average NCAP safety rating for recent car models is 4.2 out of 5 stars. Cars average 3.1 NHTSA recalls per model across categories including Airbags (Takata), Power Train, Fuel System.

Safety checkpoints for buying a used car

Before completing a car bill of sale in Washington, verify these safety items:

  • Verify airbag recall status (Takata recall affected 67M+ vehicles)
  • Check tire age — tires over 6 years old degrade regardless of tread depth
  • Confirm brake pad thickness and rotor condition
  • Test all seatbelts for proper retraction and latching

Car insurance and depreciation in Washington

Liability insurance required in 49 states (New Hampshire is the exception). Average annual premium: $1,600–$2,200. Cars lose approximately 20% of value in the first year and 60% over five years. Japanese brands retain value best. Peak season for private car sales is spring (march–may) when tax refunds boost demand, with an average of 21 days on market.

Car registration and titling

Cars are classified as "Passenger vehicle" for registration purposes. Standard passenger cars weigh 2,500–4,500 lbs; no special weight-class registration required. Federal odometer disclosure is required for cars under 20 years old.

Car sales in Seattle, Washington

Seattle residents completing a car bill of sale should be aware of local requirements in addition to Washington state rules. The state sales tax rate is 6.5%, 6.5% state plus local taxes (total up to ~10.4%). The most popular car makes in Washington include Toyota, Honda, Ford.

Washington bill of sale statistics

BillOfSaleNow has generated 2,241 bill of sale documents for Washington transactions, with 60 generated this month alone. The most popular vehicle type is car.

Why Documentation Helps Protect Asking Price

45% faster sale

Vehicles whose listings include a history report spend ~45% less time on site before selling, and report-viewers are 5x more likely to become a lead.

Source: Experian / AutoCheck

$4,000 avg loss

NHTSA estimates 450,000+ vehicles per year are sold with rolled-back odometers — the average victim loses about $4,000 in downstream repair costs.

Source: NHTSA

17.5M private sales/yr

About 17.5 million private-party vehicle transactions happen in the U.S. each year — roughly 47% of the used market.

Source: Cox Automotive 2024

1 in 3 buyers

Roughly 1 in 3 used-car buyers say they suspect private sellers are hiding mechanical problems — documentation closes that trust gap.

Source: JW Surety Bonds (n=3,000)

Frequently asked questions

What county is Seattle in, and which office handles title transfers?

Seattle is in King County. Title transfers are handled by the WA DOL – Seattle Driver Licensing Office at 2200 E Cherry St, Seattle, WA 98122. Hours: Mon–Fri 8:30 AM–4:30 PM. Phone: (360) 902-3900.

What is the sales tax rate on a car sale in Seattle?

The combined rate is 10.25%. Washington state rate 6.5% + King County/Seattle local rate 3.6% + Sound Transit 0.15%.

Is notarization required for a car bill of sale in Seattle?

No. Washington does not require notarization for private vehicle sales.

What fees should I expect when transferring a car title in Seattle?

Title transfer fee: $15.00. Base registration fee: $43.75. Sales tax at 10.25% is collected at the time of title transfer.